pycharm - macでシンプルなwebdriverを実行できません

Question

私のMacにpycharm（python3.6）+ selenium（3.8）をインストールしました。

実行しようとすると：

from selenium import webdriver 
driver=webdriver.Firefox() 

を私はエラーを取得：

/Users/ronavaida/PycharmProjects/untitled/venv/bin/python /Users/ronavaida/PycharmProjects/untitled/testselenium.py 
Traceback (most recent call last): 
    File "/Users/ronavaida/PycharmProjects/untitled/testselenium.py", line 3, in <module> 
    driver=webdriver.Firefox() 
    File "/Users/ronavaida/PycharmProjects/untitled/venv/lib/python3.6/site-packages/selenium/webdriver/firefox/webdriver.py", line 158, in __init__ 
    keep_alive=True) 
    File "/Users/ronavaida/PycharmProjects/untitled/venv/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 154, in __init__ 
    self.start_session(desired_capabilities, browser_profile) 
    File "/Users/ronavaida/PycharmProjects/untitled/venv/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 243, in start_session 
    response = self.execute(Command.NEW_SESSION, parameters) 
    File "/Users/ronavaida/PycharmProjects/untitled/venv/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 311, in execute 
    self.error_handler.check_response(response) 
    File "/Users/ronavaida/PycharmProjects/untitled/venv/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 237, in check_response 
    raise exception_class(message, screen, stacktrace) 
selenium.common.exceptions.SessionNotCreatedException: Message: Unable to find a matching set of capabilities 

、感謝を教えてください！

Answer 1

あなたが見ているエラーがそれをすべて言う：

SessionNotCreatedException: Message: Unable to find a matching set of capabilities 

初期化中にあなたがこのlinkから最新のgeckodriverバイナリをダウンロードし、お使いのシステムに保存してgeckodriverバイナリの絶対パスを指定する必要がありWebDriverとBrowserインスタンスは、次のように

from selenium import webdriver 

driver = webdriver.Firefox(executable_path=r'C:\path\to\geckodriver.exe') 
driver.get('https://www.google.co.in') 
driver.quit()